A novel Doppler-tolerant polyphase codes for pulse compression based on hyperbolic frequency modulation

Jie Yang, Tapan K. Sarkar

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The conventional polyphase pulse compression codes including Frank code, P1, P2, P3, and P4 code suffer severe signal loss in performance under Doppler environment. This paper proposed a new polyphase pulse compression codes which are conceptually derived from the step approximation of the phase curve of the hyperbolic frequency modulated chirp signal. Comparing with the above conventional codes and the sidelobe-optimized polyphase P(n, k) code, the peak value of this new polyphase codes degrades much slower and the range solution as well as maximum sidelobe level are almost constant when Doppler frequency increases. The main disadvantage of this polyphase code is the relatively high sidelobe level without Doppler effect, which can be addressed by applying the proper window function. The desired Doppler-tolerant property of this new polyphase codes is very attractive for radars employing digital signal processing.

Original languageEnglish (US)
Pages (from-to)1019-1029
Number of pages11
JournalDigital Signal Processing: A Review Journal
Volume17
Issue number6
DOIs
StatePublished - Nov 2007

Keywords

  • Doppler-tolerant
  • Polyphase codes
  • Pulse compression

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A novel Doppler-tolerant polyphase codes for pulse compression based on hyperbolic frequency modulation'. Together they form a unique fingerprint.

Cite this